IN Brief:
- An unnamed NATO country has ordered three MSI Defence Systems naval gun systems for €19.4 million.
- The 30mm systems combine radar, optical detection, and MSI fire control for counter-UAS and wider close-range defence.
- Deliveries are scheduled to begin towards the end of 2027.
MSI Defence Systems has secured a €19.4 million contract from an unnamed NATO country for three 30mm naval gun systems configured to strengthen counter-uncrewed aerial system capability. The package integrates radar and optical detection with MSI-DS fire control, giving the customer a sensor-to-effector arrangement rather than three stand-alone deck weapons. Deliveries are scheduled to begin towards the end of 2027.
MS International, MSI Defence Systems’ parent company, disclosed the order in a regulatory announcement on 24 August. The customer, vessel class, radar supplier, electro-optical equipment, ammunition configuration, and exact MSI mount variant were not identified. The disclosed architecture nevertheless establishes that the contract covers an integrated close-range defensive system rather than a straightforward gun-mount purchase.
The company says the systems are intended to counter surface, semi-submersible, and aerial threats. For small uncrewed aircraft, the difficult part of that chain begins before the gun fires: a ship has to detect a relatively small target, classify it, maintain a stable track, generate a firing solution, and engage within a short window. Radar and optical sensing provide complementary inputs, while the fire-control system has to account for both target movement and the motion of the host vessel.
Naval integration adds constraints that do not apply to a static land installation. The mount has to interface with the ship’s electrical supply, combat-management architecture, communications, deck structure, safety systems, and maintenance regime. Stabilisation, sensor alignment, cable routing, electromagnetic compatibility, and safe firing arcs all have to be verified against the specific host platform.
That work helps explain why a three-system order can run on a delivery schedule extending into late 2027. Naval weapons are rarely interchangeable commercial units: design information, software interfaces, structural arrangements, test procedures, crew training, and acceptance activity vary with the ship receiving the equipment. Manufacture of the mount is only one part of a programme that also includes integration, verification, and through-life support.
The counter-UAS role reflects growing pressure on naval point defence. Conventional surface-to-air missiles remain essential against many threats, but using a high-value interceptor against every small drone places pressure on magazine depth and cost per engagement. Medium-calibre guns can add another hard-kill layer at shorter ranges, provided detection quality, fire-control accuracy, ammunition performance, and engagement geometry are sufficient.
Electronic warfare and soft-kill systems provide different options, but their effectiveness depends on the communications, navigation, and autonomy architecture of the incoming aircraft. A drone able to continue its route without a live control link changes the value of jamming, while a swarm or mixed attack can stretch any single defensive layer. Integrated naval counter-UAS architectures are consequently combining sensors, electronic effects, guns, missiles, and other interceptors rather than relying on one mechanism.
The inclusion of surface and semi-submersible threats widens the requirement further. Small remotely operated boats, low-profile craft, and aerial drones present different signatures and approach geometries, yet all can demand rapid response at comparatively short range. A common gun and fire-control architecture can simplify the effector layer, although classification, tracking, and engagement rules still have to distinguish between very different contacts.
Ammunition handling and operator workload will also influence the naval fit. Higher rates of fire and repeated engagements consume ready-use rounds quickly, while a small target can leave little time for manual intervention between detection and firing. The combat system therefore has to give operators enough information to make an engagement decision without turning every incoming track into a separate sensor-management exercise.
Support will shape the value of the system after installation. Naval gun availability depends on spare parts, trained maintainers, ammunition supply, software support, test equipment, and access to technical assistance when faults occur. MSI Defence Systems already supports an international naval gun installed base, giving the company an existing service structure to draw on as the new NATO customer brings its systems into operation.
The €19.4 million award is also an export manufacturing win for MSI’s Norwich operation. Counter-UAS procurement is increasingly favouring integrated detection, fire-control, and effector packages rather than isolated components, and this contract places MSI across several parts of that chain. Production progress, host-platform disclosure, acceptance testing, and first delivery towards the end of 2027 will provide the next concrete measures of the programme.
